Home / 13,650.24-18,840.72-8,349.56

Finding the Fourth Proportional to 13,650.24, 18,840.72 and 8,349.56

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Solution

The fourth proportional to 13,650.24, 18,840.72 and 8,349.56 is: 11,524.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.24 : 18,840.72 = 8,349.56 : x
  2. Step 2: Convert to fraction form
    13,650.24/18,840.72 = 8,349.56/x
  3. Step 3: Cross multiply
    13,650.24x = 18,840.72 × 8,349.56
  4. Step 4: Simplify right side
    13,650.24x = 157,311,722.08
  5. Step 5: Solve for x
    x = 157,311,722.08/13,650.24
  6. Step 6: Final answer
    x = 11,524.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.